GSM/GPRS CDMA modules Wavecom GR64 Features Quad Band GSM/GPRS 850/900/1800/1900 MHz Compliant to GSM phase 2/2+ GPRS Class 10 Output power: Class4 2W for GSM850/EGSM900 Class2 1W for GSM1800/GSM1900 Control via AT commands TCP/IP stack Embedded application SIM application tool kit Supply voltage range: 3.2-4.5VDC Temperature range: -30to +75(operational functionality) -40to +85(storage temperature) Dimensions: 50x 33x 3.2mm Weight: 9g Voice: FR/EFR/HR/AMR, noise suppression and echo cancellation PCM audio, Emergency calls SMS: Text and PDU mode, Point to point (MO/MT), Cell broadcast DATA: Transparent and non transparent CSD up to 9.6kbps, USSD, Interfaces: 2x UARTs, MMCX RF connector, 60 pin system connector, Up to 12x programmable GPIOs, keypad and LCD, etc. Accessories GSM/GPRS antennas 60 pin system connector SIM card holder MMCX to SMA RF cable We are looking forward to cooperate with you. PLS skype or email me directly if you are interested. Skype: RosaWu3, E-mail/MSN: rosa_hi-cloud@hotmail.com Thanks in advance